853080869 has 2 divisors, whose sum is σ = 853080870. Its totient is φ = 853080868.

The previous prime is 853080863. The next prime is 853080871. The reversal of 853080869 is 968080358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693690244 + 159390625 = 26338^2 + 12625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853080869 is a prime.

It is a super-2 number, since 2×853080869² = 1455493938107590322, which contains 22 as substring.

Together with 853080871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853080863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426540434 + 426540435.

It is an arithmetic number, because the mean of its divisors is an integer number (426540435).

Almost surely, 2^853080869 is an apocalyptic number.

It is an amenable number.

853080869 is a deficient number, since it is larger than the sum of its proper divisors (1).

853080869 is an equidigital number, since it uses as much as digits as its factorization.

853080869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 853080869 is about 29207.5481511201. The cubic root of 853080869 is about 948.4113314817.

The spelling of 853080869 in words is "eight hundred fifty-three million, eighty thousand, eight hundred sixty-nine".